[REN-BGP-stats-all] IPv4 R&E Routing Table Report - RouteViews PacWave (R&E) view

REN Routing Table Report cscora at bgp.nsrc.org
Sun Mar 3 22:40:40 UTC 2024


IPv4 R&E Routing Table Report   22:40 GMT Sun 03 Mar, 2024

  IPv4 BGP Table (R&E) as seen at RouteViews PacWave.

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/PacWave/

Analysis Summary
----------------

BGP routing table entries examined:                               28988
    Prefixes after maximum aggregation (per Origin AS):           14594
    Deaggregation factor:                                          1.99
    Unique aggregates announced (without unneeded subnets):       17261
Total ASes present in the Internet Routing Table:                  2799
    Prefixes per ASN:                                             10.36
Origin-only ASes present in the Internet Routing Table:            2426
Origin ASes announcing only one prefix:                            1070
Transit ASes present in the Internet Routing Table:                 373
Transit-only ASes present in the Internet Routing Table:             59
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 47805)                              11
Prefixes from unregistered ASNs in the Routing Table:                13
    Number of instances of unregistered ASNs:                        13
Number of 32-bit ASNs allocated by the RIRs:                      43760
Number of 32-bit ASNs visible in the Routing Table:                 660
Prefixes from 32-bit ASNs in the Routing Table:                    4817
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              6
Number of addresses announced to Internet:                    311793920
    Equivalent to 18 /8s, 149 /16s and 153 /24s
    Percentage of available address space announced:                8.4
    Percentage of allocated address space announced:                8.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:        3743

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                     4642
    Total APNIC prefixes after maximum aggregation:                2274
    APNIC Deaggregation factor:                                    2.04
Prefixes being announced from the APNIC address blocks:            4805
    Unique aggregates announced from the APNIC address blocks:     2772
APNIC Region origin ASes present in the Internet Routing Table:     542
    APNIC Prefixes per ASN:                                        8.87
APNIC Region origin ASes announcing only one prefix:                229
APNIC Region transit ASes present in the Internet Routing Table:     56
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    206
Number of APNIC addresses announced to Internet:               47108864
    Equivalent to 2 /8s, 206 /16s and 211 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     18335
    Total ARIN prefixes after maximum aggregation:                 8632
    ARIN Deaggregation factor:                                     2.12
Prefixes being announced from the ARIN address blocks:            17861
    Unique aggregates announced from the ARIN address blocks:     10150
ARIN Region origin ASes present in the Internet Routing Table:     1306
    ARIN Prefixes per ASN:                                        13.68
ARIN Region origin ASes announcing only one prefix:                 453
ARIN Region transit ASes present in the Internet Routing Table:     168
Average ARIN Region AS path length visible:                         3.1
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     212
Number of ARIN addresses announced to Internet:               189854464
    Equivalent to 11 /8s, 80 /16s and 243 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      3637
    Total RIPE prefixes after maximum aggregation:                 2935
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3945
    Unique aggregates announced from the RIPE address blocks:      3332
RIPE Region origin ASes present in the Internet Routing Table:      678
    RIPE Prefixes per ASN:                                         5.82
RIPE Region origin ASes announcing only one prefix:                 304
RIPE Region transit ASes present in the Internet Routing Table:     100
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     149
Number of RIPE addresses announced to Internet:                67337472
    Equivalent to 4 /8s, 3 /16s and 125 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-216475
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    1384
    Total LACNIC prefixes after maximum aggregation:                569
    LACNIC Deaggregation factor:                                   2.43
Prefixes being announced from the LACNIC address blocks:           1390
    Unique aggregates announced from the LACNIC address blocks:     774
LACNIC Region origin ASes present in the Internet Routing Table:    163
    LACNIC Prefixes per ASN:                                       8.53
LACNIC Region origin ASes announcing only one prefix:                59
LACNIC Region transit ASes present in the Internet Routing Table:    26
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    67
Number of LACNIC addresses announced to Internet:               4742912
    Equivalent to 0 /8s, 72 /16s and 95 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                    977
    Total AfriNIC prefixes after maximum aggregation:               173
    AfriNIC Deaggregation factor:                                  5.65
Prefixes being announced from the AfriNIC address blocks:           981
    Unique aggregates announced from the AfriNIC address blocks:    227
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     20.44
AfriNIC Region origin ASes announcing only one prefix:               25
AfriNIC Region transit ASes present in the Internet Routing Table:    8
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   26
Number of AfriNIC addresses announced to Internet:              2747136
    Equivalent to 0 /8s, 41 /16s and 235 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         588       2161     462  SINET-AS Research Organization of Infor
  7497         441        180      23  CSTNET-AS-AP Computer Network Informati
  1237         192         74     142  KREONET-AS-KR KISTI, KR
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  7575         173        329     116  AARNET-AS-AP Australian Academic and Re
  4538         130       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         129         19      18  NKN-CORE-NW NKN Core Network, IN
  4762          71          4       1  MAHIDOL-BORDER-AS Mahidol University, T
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T
  4621          65         37      10  UNINET-AS-AP UNINET-, TH

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        4511       4653    2102  AMAZON-02, US
396982        2759       3639     396  GOOGLE-CLOUD-PLATFORM, US
 14618         855       4161     645  AMAZON-AES, US
 15169         835       2001      62  GOOGLE, US
  8075         442      12797     370  MICROSOFT-CORP-MSN-AS-BLOCK, US
  2152         426        507      96  CSUNET-NW, US
   668         203        648     172  DNIC-AS-00668, US
   376         201        162     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
 36492         165         12      38  GOOGLEWIFI, US

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch
   786         184       1767     181  JANET Jisc Services Limited, GB
  8895         134         24       5  ISU Internet Services Unit ISU, SA
   559         114        533     104  SWITCH Peering requests: peering at switch
  1103          95       1503      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         27      73  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnol
   553          78        462      78  BELWUE BelWue-Koordination, DE
  3267          77         44      68  RUNNET, RU

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 28391         154         10      67  Universidad Juarez Autonoma de Tabasco,
  1916         149        176      42  Rede Nacional de Ensino e Pesquisa, BR
 11340         108         25      51  Red Universitaria Nacional, CL
271640          68          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  4270          49         16       2  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  2715          44         99      34  Fundacao Carlos Chagas Filho de Amparo 
 61468          43          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
  1251          35         32      25  FUNDACAO DE AMPARO A PESQUISA DO ESTADO

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         376        319      71  TENET-1, ZA
 36914         203         82       3  KENET-AS, KE
327687         161         28       3  RENU, UG
  8094          47         48      18  PUKNET, ZA
327700          45         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37074          13          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA
 37654          11          1       6  RwEdNet-AS, RW
 37215           9          8       1  MAREN, MW

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        4511       4653    2102  AMAZON-02, US
396982        2759       3639     396  GOOGLE-CLOUD-PLATFORM, US
 14618         855       4161     645  AMAZON-AES, US
 15169         835       2001      62  GOOGLE, US
  2907         588       2161     462  SINET-AS Research Organization of Infor
  8075         442      12797     370  MICROSOFT-CORP-MSN-AS-BLOCK, US
  7497         441        180      23  CSTNET-AS-AP Computer Network Informati
  2152         426        507      96  CSUNET-NW, US
  2018         376        319      71  TENET-1, ZA
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
396982        2759         2363  GOOGLE-CLOUD-PLATFORM, US
 15169         835          773  GOOGLE, US
  7497         441          418  CSTNET-AS-AP Computer Network Information Cente
  2152         426          330  CSUNET-NW, US
  2018         376          305  TENET-1, ZA
 14618         855          210  AMAZON-AES, US
 36914         203          200  KENET-AS, KE
  5786         197          196  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
327687         161          158  RENU, UG

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65208  PRIVATE      63.225.1.0/24            11570  RESERVED, ZZ
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
     11570  UNALLOCATED  192.94.216.0/24          40498  ABQG, US
     11570  UNALLOCATED  192.207.226.0/24         40498  ABQG, US
     11570  UNALLOCATED  198.59.106.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.107.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.108.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.188.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.189.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.190.0/24          40498  ABQG, US

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-badAS

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
45.42.252.0/22       Origin:     16509  AMAZON-02, US
45.42.252.0/22      Transit:       101  WASH-NSF-AS, US
64.186.3.0/24        Origin:     16509  AMAZON-02, US
64.186.3.0/24       Transit:       101  WASH-NSF-AS, US
170.39.88.0/24       Origin:     14618  AMAZON-AES, US
170.39.88.0/24      Transit:     16509  AMAZON-02, US
173.249.168.0/22     Origin:     16509  AMAZON-02, US
173.249.168.0/22    Transit:       101  WASH-NSF-AS, US
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:0        /9:1       /10:3       /11:11      /12:33      
/13:47      /14:112     /15:209     /16:2244    /17:574     /18:535     
/19:771     /20:2879    /21:1346    /22:2086    /23:2184    /24:15953   
/25:0       /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 16509         767        4511  AMAZON-02, US
 14618         282         855  AMAZON-AES, US
 15169         275         835  GOOGLE, US
396982         208        2759  GOOGLE-CLOUD-PLATFORM, US
 36914         190         203  KENET-AS, KE
  8895         129         134  ISU Internet Services Unit ISU, SA
  8075          96         442  MICROSOFT-CORP-MSN-AS-BLOCK, US
 23024          52         106  OCDE, US
  2152          46         426  CSUNET-NW, US
327700          39          45  MoRENet, MZ

Complete listing at https://bgp.nsrc.org/REN/PacWave/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:3         2:1         3:145       4:2         5:22        6:4      
   8:28       12:1        13:181      14:90       15:132      16:113    
  18:278      23:120      24:3        31:3        34:24       35:58     
  38:8        40:6        41:120      42:10       43:2        44:10     
  45:72       46:15       47:1        49:9        50:12       52:868    
  54:189      58:1        59:19       60:6        61:3        62:16     
  63:46       64:180      65:43       66:111      67:68       68:22     
  69:61       70:44       71:46       72:17       74:152      76:49     
  77:13       78:3        79:9        80:13       81:26       82:5      
  83:7        84:11       85:47       86:4        87:4        88:1      
  89:21       91:62       92:7        93:5        94:6        95:3      
  96:6        97:1        98:14       99:79      101:3       102:41     
 103:331     104:245     107:49      108:167     109:10      111:17     
 113:4       114:32      115:1       116:12      117:61      118:33     
 119:19      121:27      122:11      123:8       124:42      125:5      
 128:86      129:50      130:154     131:81      132:59      133:157    
 134:112     135:4       136:302     137:181     138:64      139:19     
 140:46      141:8       142:292     143:37      144:69      145:5      
 146:136     147:74      148:206     149:18      150:49      151:32     
 152:136     153:14      154:30      155:86      156:71      157:30     
 158:46      159:157     160:36      161:46      162:122     163:95     
 164:26      165:61      166:2       167:27      168:165     169:11     
 170:203     171:1       172:120     173:124     174:2       175:25     
 176:13      177:5       178:2       179:10      180:15      181:1      
 182:1       184:3       185:137     186:3       187:17      188:21     
 189:3       190:17      191:12      192:1605    193:288     194:137    
 195:76      196:195     197:118     198:586     199:387     200:278    
 201:37      202:626     203:439     204:415     205:188     206:217    
 207:259     208:161     209:226     210:195     211:14      212:170    
 213:17      214:8       216:221     217:14      218:22      219:5      
 220:17      222:2       223:14     

End of report


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